[INFO] cloning repository https://github.com/xd009642/llvm-embedded-coverage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xd009642/llvm-embedded-coverage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Fllvm-embedded-coverage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Fllvm-embedded-coverage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c15428490e8b2767a8350017cbea93e591475c77
[INFO] checking xd009642/llvm-embedded-coverage against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Fllvm-embedded-coverage" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xd009642/llvm-embedded-coverage
[INFO] finished tweaking git repo https://github.com/xd009642/llvm-embedded-coverage
[INFO] tweaked toml for git repo https://github.com/xd009642/llvm-embedded-coverage written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xd009642/llvm-embedded-coverage on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xd009642/llvm-embedded-coverage already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3530923b749da52f7d6665f1b46cbd4ae9e1a9fe399fdbfbd54c5e2eabcc2db
[INFO] running `Command { std: "docker" "start" "-a" "d3530923b749da52f7d6665f1b46cbd4ae9e1a9fe399fdbfbd54c5e2eabcc2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3530923b749da52f7d6665f1b46cbd4ae9e1a9fe399fdbfbd54c5e2eabcc2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3530923b749da52f7d6665f1b46cbd4ae9e1a9fe399fdbfbd54c5e2eabcc2db", kill_on_drop: false }`
[INFO] [stdout] d3530923b749da52f7d6665f1b46cbd4ae9e1a9fe399fdbfbd54c5e2eabcc2db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8dee9029a7dfae601beabe4b4dd312c30ff66b041e6624d5bd11330b1f842ff
[INFO] running `Command { std: "docker" "start" "-a" "d8dee9029a7dfae601beabe4b4dd312c30ff66b041e6624d5bd11330b1f842ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling llvm-embedded-coverage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `maybe_uninit_uninit_array`
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `maybe_uninit_uninit_array`
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `uninit_array` found for union `MaybeUninit<T>` in the current scope
[INFO] [stdout]   --> src/main.rs:32:95
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let mut buffer: [MaybeUninit<u8>; constants::COVERAGE_BUFFER_SIZE] = MaybeUninit::uninit_array();
[INFO] [stdout]    |                                                                                               ^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]   --> /rustc/73ffebff6f34db7eb167bf9edcf2afa19c3073e9/library/core/src/mem/maybe_uninit.rs:308:5
[INFO] [stdout] help: there is an associated function `uninit` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 32 -             let mut buffer: [MaybeUninit<u8>; constants::COVERAGE_BUFFER_SIZE] = MaybeUninit::uninit_array();
[INFO] [stdout] 32 +             let mut buffer: [MaybeUninit<u8>; constants::COVERAGE_BUFFER_SIZE] = MaybeUninit::uninit();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `slice_assume_init_ref` found for union `MaybeUninit<T>` in the current scope
[INFO] [stdout]   --> src/main.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |         MaybeUninit::slice_assume_init_ref(&buffer[..length])
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]   --> /rustc/73ffebff6f34db7eb167bf9edcf2afa19c3073e9/library/core/src/mem/maybe_uninit.rs:308:5
[INFO] [stdout] help: there is a method `assume_init_ref` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/73ffebff6f34db7eb167bf9edcf2afa19c3073e9/library/core/src/mem/maybe_uninit.rs:787:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `llvm-embedded-coverage` (bin "llvm-embedded-coverage" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `llvm-embedded-coverage` (bin "llvm-embedded-coverage") due to 3 previous errors
[INFO] [stdout] error[E0599]: no function or associated item named `uninit_array` found for union `MaybeUninit<T>` in the current scope
[INFO] [stdout]   --> src/main.rs:32:95
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let mut buffer: [MaybeUninit<u8>; constants::COVERAGE_BUFFER_SIZE] = MaybeUninit::uninit_array();
[INFO] [stdout]    |                                                                                               ^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]   --> /rustc/73ffebff6f34db7eb167bf9edcf2afa19c3073e9/library/core/src/mem/maybe_uninit.rs:308:5
[INFO] [stdout] help: there is an associated function `uninit` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 32 -             let mut buffer: [MaybeUninit<u8>; constants::COVERAGE_BUFFER_SIZE] = MaybeUninit::uninit_array();
[INFO] [stdout] 32 +             let mut buffer: [MaybeUninit<u8>; constants::COVERAGE_BUFFER_SIZE] = MaybeUninit::uninit();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `slice_assume_init_ref` found for union `MaybeUninit<T>` in the current scope
[INFO] [stdout]   --> src/main.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |         MaybeUninit::slice_assume_init_ref(&buffer[..length])
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]   --> /rustc/73ffebff6f34db7eb167bf9edcf2afa19c3073e9/library/core/src/mem/maybe_uninit.rs:308:5
[INFO] [stdout] help: there is a method `assume_init_ref` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/73ffebff6f34db7eb167bf9edcf2afa19c3073e9/library/core/src/mem/maybe_uninit.rs:787:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d8dee9029a7dfae601beabe4b4dd312c30ff66b041e6624d5bd11330b1f842ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8dee9029a7dfae601beabe4b4dd312c30ff66b041e6624d5bd11330b1f842ff", kill_on_drop: false }`
[INFO] [stdout] d8dee9029a7dfae601beabe4b4dd312c30ff66b041e6624d5bd11330b1f842ff
